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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
<title>文件上传模块 - layui</title>

<link rel="stylesheet" href="../src/css/layui.css">

<style>
body{padding: 50px 100px;}
.layui-upload-img{width: 92px; height: 92px; margin: 0 10px 10px 0;}
hr{margin: 30px 0;}
</style>
</head>
<body>

<div class="layui-upload">
  <button type="button" class="layui-btn" id="test1">上传图片</button>
  
  <div class="layui-upload-list">
    <img class="layui-upload-img" src="" id="demo1">
    <p id="demoText"></p>
  </div>
</div>

<hr>

<div class="layui-upload">
  <button type="button" class="layui-btn" id="test2">多图片上传</button> 
  <div class="layui-upload-list" id="demo2"></div>
</div>

<hr>

<div class="layui-upload">
  <button type="button" class="layui-btn layui-btn-normal" id="testList">选择多文件</button> 
  <div class="layui-upload-list">
    <table class="layui-table">
      <thead>
        <th>文件名</th>
        <th>大小</th>
        <th>状态</th>
        <th>操作</th>
      </thead>
      <tbody id="demoList"></tbody>
    </table>
  </div>
  <button type="button" class="layui-btn" id="testListAction">开始上传</button>
</div>

<hr>

<button type="button" class="layui-btn test333" lay-data="{size:10,url:'a'}" id="test3"><i class="layui-icon">&#xe67c;</i>上传文件</button>
<button type="button" class="layui-btn layui-btn-primary test333" lay-data="{size:20,url:'b'}" id="test33"><i class="layui-icon">&#xe67c;</i>换个样式</button>

<button type="button" class="layui-btn" id="test4"><i class="layui-icon">&#xe67c;</i>上传视频</button>
<button type="button" class="layui-btn" id="test5"><i class="layui-icon">&#xe67c;</i>上传音频</button>

<hr>

<button class="layui-btn testm" lay-data="{url: '/a/'}">参数设在元素上</button>
<button class="layui-btn testm" lay-data="{url: '/b/', accept: 'file',size:5}">参数设在元素上</button>

<hr>

<div class="layui-upload">
  <button type="button" class="layui-btn layui-btn-normal" id="test6">选择文件</button>
  <button type="button" class="layui-btn" id="test7">开始上传</button>
</div>

<hr><br>

<div class="layui-upload-drag" id="test9">
  <i class="layui-icon">&#xe67c;</i>
  <p>点击上传，或将文件拖拽到此处</p>
</div>

<hr><br>

绑定原始文件域：<input type="file" name="file" id="test8">

<script src="../src/layui.js"></script>
<script>
layui.use('upload', function(){
  var $ = layui.jquery
  ,upload = layui.upload;

  var uploadInst = upload.render({
    elem: '#test1'
    ,url: 'http://httpbin.org/image'
    ,size: 2000 //限制文件大小，单位 KB
    //,accept: 'file'
    ,method: 'get'
    ,fileAccept: 'image/*'
    ,exts: "jpg|png|gif|bmp|jpeg|pdf"
    ,data: { //额外参数
      a: 1
      ,b: function(){
        return 2
      }
    }
    ,choose: function(){
      console.log(1)
    }
    ,before: function(obj){
      //预读本地文件示例，不支持ie8
      obj.preview(function(index, file, result){
        $('#demo1').attr('src', result); //图片链接（base64）
      });
    }
    ,done: function(res){
      //如果上传失败
      if(res.code > 0){
        return layer.msg('上传失败');
      }
      //上传成功
    }
    ,error: function(){
      //演示失败状态，并实现重传
      var demoText = $('#demoText');
      demoText.html('<span style="color: #FF5722;">上传失败</span> <a class="layui-btn layui-btn-mini demo-reload">重试</a>');
      demoText.find('.demo-reload').on('click', function(){
        uploadInst.upload();
      });
    }
  });
  
  upload.render({
    elem: '#test2'
    ,url: ''
    ,multiple: true
    ,number: 3
    ,size: 1024
    ,before: function(obj){
      //预读本地文件示例，不支持ie8
      obj.preview(function(index, file, result){
        $('#demo2').append('<img src="'+ result +'" alt="'+ file.name +'" class="layui-upload-img">')
      });
    }
    ,done: function(res){
      //上传完毕
    }
    ,allDone: function(obj){
      console.log(obj)
    }
  });
  
  //演示多文件列表
  var demoListView = $('#demoList');
  var uploadListIns = upload.render({
    elem: '#testList'
    ,url: ''
    ,accept: 'file'
    ,multiple: true
    ,number: 3
    ,auto: false
    ,bindAction: '#testListAction'
    ,choose: function(obj){   
      var files = this.files = obj.pushFile(); //将每次选择的文件追加到文件队列

      //读取本地文件
      obj.preview(function(index, file, result){
        var tr = $(['<tr id="upload-'+ index +'">'
          ,'<td>'+ file.name +'</td>'
          ,'<td>'+ (file.size/1014).toFixed(1) +'kb</td>'
          ,'<td>等待上传</td>'
          ,'<td>'
            ,'<button class="layui-btn layui-btn-mini demo-reload layui-hide">重传</button>'
            ,'<button class="layui-btn layui-btn-mini layui-btn-danger demo-delete">删除</button>'
          ,'</td>'
        ,'</tr>'].join(''));
        
        //单个重传
        tr.find('.demo-reload').on('click', function(){
          obj.upload(index, file);
        });
        
        //删除
        tr.find('.demo-delete').on('click', function(){
          delete files[index]; //删除对应的文件
          tr.remove();
          uploadListIns.config.elem.next()[0].value = ''; //清空 input file 值，以免删除后出现同名文件不可选
        });
        
        demoListView.append(tr);
      });
    }
    ,done: function(res, index, upload){
      if(res.code == 0){ //上传成功
        var tr = demoListView.find('tr#upload-'+ index)
        ,tds = tr.children();
        tds.eq(2).html('<span style="color: #5FB878;">上传成功</span>');
        tds.eq(3).html(''); //清空操作
        delete this.files[index]; //删除文件队列已经上传成功的文件
        return;
      }
      this.error(index, upload);
    }
    ,allDone: function(obj){
      console.log(obj)
    }
    ,error: function(index, upload){
      var tr = demoListView.find('tr#upload-'+ index)
      ,tds = tr.children();
      tds.eq(2).html('<span style="color: #FF5722;">上传失败</span>');
      tds.eq(3).find('.demo-reload').removeClass('layui-hide'); //显示重传
    }
  });
  

  upload.render({
    elem: '.test333'
    ,url: 'a'
    ,accept: 'file'
    ,before: function(obj){
      console.log(this.item);
    }
    ,done: function(res){
      console.log(res)
    }
  });
  
  upload.render({
    elem: '.testm'
    ,done: function(res, index, upload){
      //获取当前触发上传的元素，一般用于 elem 绑定 class 的情况，注意：此乃 layui 2.1.0 新增
      var item = this.item;
    }
  })
  
  /*
  upload.render({
    elem: '#test33'
    ,url: ''
    ,accept: 'file'
    ,done: function(res){
      console.log(res)
    }
  });*/
  
  upload.render({
    elem: '#test4'
    ,url: ''
    ,accept: 'video'
    ,done: function(res){
      console.log(res)
    }
  });
  
  upload.render({
    elem: '#test5'
    ,url: ''
    ,accept: 'audio'
    ,done: function(res){
      console.log(res)
    }
  });
  
  
  //手动上传
  upload.render({
    elem: '#test6'
    ,url: ''
    ,auto: false
    //,multiple: true
    ,bindAction: '#test7'
    ,choose: function(obj){   
      var that = this;
      obj.preview(function(index, file){
        obj.resetFile(index, file, '123.jpg');
      });
    }
    ,before: function(){
      console.log(345);
    }
    ,done: function(res){
      console.log(res);
    }
  });
  
  upload.render({
    elem: '#test8'
    ,url: ''
    ,done: function(res){
      console.log(res);
    }
  });
  
  upload.render({
    elem: '#test9'
    ,url: ''
    ,done: function(res){
      console.log(res);
    }
  });
  
});
</script>
</body>
</html>